Sewing machine binder



June 6, 1933. H, GENsHEiMER 1,913,112

SEWING MACHINE BINDER Filed Nov. l, 1927 INVENTOR @mq/fil @ws/Mam;

WwW/2f @fm ATTORN EY i Patented June 6, 1933 HENRY GENSHEIMER, vOlli' CORONA, NEW YORK SEWING MACHINE BINDER u The invention relates in general to a binder `attachment for sewing machines of the kindin which a strip of binding inateiial is folded and fed in adirection at right angles to the `direction of needle feed and the present disclosure constitutes an additionkto the sewing inachinebinder disclosed in `my copending application Serial No. 55,223iiled September 9, 1925, which application ma.-l 19 aired into Patent No.1,72a556 sept. e, 1929,

andin which application there is disclosed means for guiding and folding a binding as i it is being appliedrto the edge of the material being bound and means for adjusting the dis-V .15 charge end of the binder relative to the `stitching line to provide for various width bindings.

In binding the raw Iedges of fabrics which i ,have loose ravelled threads extending there- Ifrom it is cuite usual to have the ravelled threads project inwardly from the edge of the binding as shown in Fig. 3 in the at-1 tached drawing, which results in either the` '-eleaving of an unattractive appearancejor 4'nhe necessity of trimmingthe exposed porbodiment of the invention and showing the .several adjustable parts ofthe binder detions of the ravelled threads.

The primary object of the present inven- ,tion is to provide a simplified means which nmay be used in connection with any binding `attachment to lay the ravelled threads against the edge being bound so that in the subsequent operation of positioning the binding about thisedge the iavelled threads hid and concealed within the bind- `ing. f

. It is usual in binding attachments of the Y i a s a n i type under discussion and as shownin my co-pending application above identified to @provide means for `varyingthe position of the discharge endof the binding guiding means so as to provide variations `in `the `lapped width of the binding. Such adjustments have the effect of shifting the edge wrelative to the-line of stitchingcaused by j `the machine needle.

Accordingly, another object of the tion is to provide a simplified means for adjusting the ravelled thread laying devicel `herein featured, so that it maybe conveniently moved into position to engage the inven` tion, there is disclosed a bed plate 1 of a` Application ala November 1.1927. sefia`1"N0.23o,3'f/s.`

edge when shifted to provide the desired lapped width in the binding. j

Still another object of the invention is to provide a mounting for `such iavelled thread laying device which will facilitateits ready fr E' installing and deinouiiting, and which will j permit of it being movedireadily from an operative into an inoperative out-of-the-way position without necessity of providing any other means than are already present in such constructions for securing the attach-` ment to the sewing machine.

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawing and in part `willbe more fully setI forth in thel followingparticular description of one form of mechanism embodying my in-` vention, and the invention also consists in certain new and novel features of construction and combination of parts hereinafter set forthiand claimed. i i In the accompanying drawing: j Fig. 1 is a plan view looking down upon an attachment constituting a preferred einvice in two adjusted positions;

Fig. 2 is a transverse sectional view taken on the line 2--2 of Fig'.` 1 `looking in the direction indicated by the arrow;

Fig. 3 is an explanatory view showing a conventional form `of bound edge material which the present invention` is intended to improve;

Fig. 4 is similarview showing frayed or ravelled thread edge`s,"and with a thread In the drawing and referring"` first `to parts shown in the above identified applicathe sewing machine in any conventional `manner as by screws passing through the pair of apertures 2. The bed plate is also provided with the customary apertures 3 and 4 and with an eye 5 for a needle. A base plate 7 is slidably mounted in groove 9 for lateral movement transversely of the line of stitching and carries with it a folding device or binder 42 for feeding binding tape 46 from its delivery end 20 to the edge e of the material m. The delivery end 2O is adjusted relative to the needle eye 5 andy thus relative to the line of stitching s by means of a lever 13 ,pivotally mounted on screw 14 and operatively connected to shift the plate 7 to and from the needle eye 5 in a manner more fully described in the copending application.

A ravelled thread laying device 22 (see Fig. 5) is mounted on an extension 23 of the bed plate in advance of the binder feeding device 42. The device is in the form of a metallic stamping having a material guiding notch or slot 32 extending inwardly in the edge thereof opposite the needle eye The portion 24 of this plate on one side of the notch is somewhat circular in plan and is formed llat as shown in Fig. 2 and rests lat on top of the bed plate. This flat portion is provided centrally thereof with a depressed rim 25 providing a rotatable fit in lane of the openings 2. In this way the screw 26 which is normally used for securing` the bed plate 1in position is additionally used as a means for securing the device in rotatable and at the same time readilyvremova.- ble position on the bed plate. The portion 27 on the side of the notch opposite the flat side 24 constitutes a wing extension which projects from one side of the circular rotatably mountedlpart 24, is bent upwardly in line with the notch and away from the bed plate to provide' a clearance28 to accommodate the material m between the wing 27 and the bed plate as particularly shown in Fig. 2.

The wing issomewhat in the form of a right triangle with its forward edge or rather point turned upward to provide a curved lip 29 designed to guide the edge of the material into the slot 32.

The underside of the device 22 is provided with a groove 31 V-shaped in cross `section as shown in Fig. 6 and V-shaped in plan as shown in dotted lines in Fig. 1. This groove extends in the prolongation of the slot 32, in line or approximately in line with the edge e and with its wide end at the crotch 30 of the notch.

In operation it will be understood lthat the material to be bound is fed to the mahine conventionally and as disclosed in my co-pendmg application. With Vthe attachment herein featured in operative position as shown in Fig. 1, the raw edge e of the material is passed laterally through the slot 32. This movement is assisted by the curved li-p 29 which tends to ease and guide the material into the slot. As the material. is fed to the binder and needle any threads t which may be projecting from the edge c are engaged by the crotch 30 of the slot and moved from the outstanding position shown at the bottom of Figs. 1 and 4 into a positiony lying parallel to the edge c. As the thread laying device is positioned as close as possible to the binder 42, it will mean that the thread so laid will not have an opportunity to escape back into their outstanding positions and the subsequent and prompt stitching of the binding as shown in Fig. 4 will conceal the ravelled threads so laid. There will result a finished appearance to the binder in contradistinction from the loose ravelled thread appearance of the binding as shown in Fig. 3 where vthe binding has been applied with the thread laying device.

IVhile the device will function even without the ii-groove shown at 31, the lpresence of this groove positively insures the collecting of the threads as they are drawn into the slot and the assembling of the threads compactly into parallel relationand laid along the edge e.

In those cases where it is desired to pro# vide a wider or narrower width tothe finished binding, the binder 42 is shifted conventionally such for instance as from. the full line into the dotted line position shown in Fig. 1. This will result in causing the binding stitchings to be positioned a greater distance from the finished edge than in the preceding instance. As this shifting of the binder changes the position of the raw edge c relative to the line of stitchings, it is necessary to similarly shift the position of the crotch 3()V of the thread assembling notch so that it will be in the proper position to engage the extended ravelled threads. The pivotal mounting of the device 22 herein disclosed provides a convenient means for shifting the position of the notch relative to the adjusted line of stitching.

This shifting ofthe device 22 is attained simply by loosening the screw 26, making the necessary adjustments and a subsequent tightening of the screw secures the device in its adjusted position. It is noted that the device 22 may be secured in adjusted position on a conventional form of bed plate without necessity of providing any attaching means particularly designed fol" this purpose. The screw holes 2 and screws 26 are already present as a means for securing the bed plate to the machine. Should it be desired to remove the attachment entirely, it is simply necessary to loosen screw 26, lift the attachment out' of the screw hole and reinsert the screw in plate. Y

I claim:

l. In a binding attachment for sewing maplace to secure the bed chines, a bed plate provided with'means for of said binding guiding means relative to the line of stitching formed by the needle, a ravelled thread laying device distinct from said guiding means carried by the bed plate for engaging and laying backen the edge to be bound any loose ravelled threads which may be extending from the edge and means for securing said device in adjusted position on the bed plate, said. guiding means and said thread laying device coacting to provide binding of different widths.

2. In a binding attachment for sewing machines, a bed plate, means for guiding and folding the binding about the edge of the material being bound, means for adjustingthe discharge end of said means and means carried by the bed plate for guiding into the binding any loose ravelled threads which may be extending from the edge, said thread guiding means being adjustable to `bring it into operative relation to said edge.

3. In a binding attachment for sewing machines, the combination of means for guiding and folding a binding about the edge oi' the material being bound, and means positioned in advance of said guiding means and adjustable relative thereto for guiding into a position extending along the edge any loose ravelled threads which may be extending from the edge, whereby said threads will be enclosed within the binding when the binding is stitched inplace.

4. In a binding attachment for sewing nachines, a bed plate provided with means iorsecuringit to themachine and in operative relation to the machine needle, means carried by the plate and including a slitted member with the slit positioned in advance if the needle path for engaging and moving back along the edge to be bound any ravelled threads which may be projecting beyond `said edge, and a common means for securing said vlast named means to the bed plate and for securing the bed plate to the machine.

5. Ina binding attachment for sewing machines, a bed plate provided with a needle receiving eye, a ravelled thread laying device rotatably mounted on the plate, and a 1 yJinding guiding means having its discharge end positioned between the needle receiving eye and said device.

6. `In a binding attachment for sewing machines, a bed plate provided with a needle receiving eye `and with means for locating the plate relative to the needle path of the machine, amaterial guiding plate having an edge guiding notch in the edge remote from the needle receiving eye, the portion of said j guiding plate on one side of the notch restside of the notch raised from the bed plate and providing a clearance for the` theV material being bound.`

7. In a binding attachment `forsewing machines, a bed plate provided with means for locating the same relative to the needle path of the machine and also provided with a needle receivingeye, a material guiding plate having an edge guiding notch in the edge remote from the needle receivingeye, the portion of said guiding plate on one side of the notch resting fiat on top of and rotatablymounted on the bed plate and the portion on the other side of the notch raised from the bed plate and providing a clearance for the edge of the material being bound, the extremity of saidraised portion adjacent the notch being turned upward to provide a curved lip to guide the edge of the material into said clearance.

8. An attachment vfor sewing machines comprising a bed plate, meansior mounting thesame in position on a support, a material guiding plate horizontally disposed and provided with an edge receiving slot adapted to lay back on `the edge of `the material passed therethrough any ravelled threads which may be extending from said edge and means for pivotally mounting said guiding plate on the bed plate whereby the angle between the length of the slot and the line of stitching may be varied at will and whereby the guiding plate may be clamped in its adjusted position.

9. An attachment for a sewing machine comprising means for mounting the saine in position on a support and having a portion provided with aV slot having a crotch ior engaging the edge of the material being sewed, the underside of said attachment provided with a V-groove having its Wide end `opening into the slot at its crotch and said .which may be projecting from said edge,

said means including a plate having a supporting part and provided with a slot in one edge and said plate provided on its underside with a groove inprolongation of the slot, the portion of the plate which is on one side of the groove and slot extending upwardly at an angle to the supporting` part of the plate thereby to form a wing extension.

` 11. In a sewing machine, means for gathering and laying back on the edge of the material being sewed any ravelled threads which may he projecting from` said edge, said means including a stamping comprislio ing a circular portion and a. wing extending from one edge of the circular portion, :1nd forming therebetween a notch and also provided on one side with a V-groove in alignn ment with said notch and coacting therewith to receive and gather the threads into line as the material is fed past said means. Signed at New York, in the county of New York, and State of New York this 13th day of October, A. D. 1927.

v HENRY GENSHEIMER. 

